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/**
 * Base By Siputzx
 * Created On 22/2/2024
 * Contact Me on wa.me/6288292024190
 * Supported By Gpt Assistant 
*/

const fs = require('fs')
const { tmpdir } = require("os")
const Crypto = require("crypto")
const ffmpegPath = require('@ffmpeg-installer/ffmpeg').path;
const ff = require('fluent-ffmpeg')
const webp = require("node-webpmux")
const path = require("path")
ff.setFfmpegPath(ffmpegPath);

async function imageToWebp (media) {

    const tmpFileOut = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    const tmpFileIn = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.jpg`)

    fs.writeFileSync(tmpFileIn, media)

    await new Promise((resolve, reject) => {
        ff(tmpFileIn)
            .on("error", reject)
            .on("end", () => resolve(true))
            .addOutputOptions([
                "-vcodec",
                "libwebp",
                "-vf",
                "scale='min(320,iw)':min'(320,ih)':force_original_aspect_ratio=decrease,fps=15, pad=320:320:-1:-1:color=white@0.0, split [a][b]; [a] palettegen=reserve_transparent=on:transparency_color=ffffff [p]; [b][p] paletteuse"
            ])
            .toFormat("webp")
            .save(tmpFileOut)
    })

    const buff = fs.readFileSync(tmpFileOut)
    fs.unlinkSync(tmpFileOut)
    fs.unlinkSync(tmpFileIn)
    return buff
}

async function videoToWebp (media) {

    const tmpFileOut = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    const tmpFileIn = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.mp4`)

    fs.writeFileSync(tmpFileIn, media)

    await new Promise((resolve, reject) => {
        ff(tmpFileIn)
            .on("error", reject)
            .on("end", () => resolve(true))
            .addOutputOptions([
                "-vcodec",
                "libwebp",
                "-vf",
                "scale='min(320,iw)':min'(320,ih)':force_original_aspect_ratio=decrease,fps=15, pad=320:320:-1:-1:color=white@0.0, split [a][b]; [a] palettegen=reserve_transparent=on:transparency_color=ffffff [p]; [b][p] paletteuse",
                "-loop",
                "0",
                "-ss",
                "00:00:00",
                "-t",
                "00:00:05",
                "-preset",
                "default",
                "-an",
                "-vsync",
                "0"
            ])
            .toFormat("webp")
            .save(tmpFileOut)
    })

    const buff = fs.readFileSync(tmpFileOut)
    fs.unlinkSync(tmpFileOut)
    fs.unlinkSync(tmpFileIn)
    return buff
}

async function writeExifImg (media, metadata) {
    let wMedia = await imageToWebp(media)
    const tmpFileIn = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    const tmpFileOut = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    fs.writeFileSync(tmpFileIn, wMedia)

    if (metadata.packname || metadata.author) {
        const img = new webp.Image()
        const json = { "sticker-pack-id": `https://github.com/DikaArdnt/Hisoka-Morou`, "sticker-pack-name": metadata.packname, "sticker-pack-publisher": metadata.author, "emojis": metadata.categories ? metadata.categories : [""] }
        const exifAttr = Buffer.from([0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, 0x41, 0x57, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00])
        const jsonBuff = Buffer.from(JSON.stringify(json), "utf-8")
        const exif = Buffer.concat([exifAttr, jsonBuff])
        exif.writeUIntLE(jsonBuff.length, 14, 4)
        await img.load(tmpFileIn)
        fs.unlinkSync(tmpFileIn)
        img.exif = exif
        await img.save(tmpFileOut)
        return tmpFileOut
    }
}

async function writeExifVid (media, metadata) {
    let wMedia = await videoToWebp(media)
    const tmpFileIn = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    const tmpFileOut = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    fs.writeFileSync(tmpFileIn, wMedia)

    if (metadata.packname || metadata.author) {
        const img = new webp.Image()
        const json = { "sticker-pack-id": `https://github.com/DikaArdnt/Hisoka-Morou`, "sticker-pack-name": metadata.packname, "sticker-pack-publisher": metadata.author, "emojis": metadata.categories ? metadata.categories : [""] }
        const exifAttr = Buffer.from([0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, 0x41, 0x57, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00])
        const jsonBuff = Buffer.from(JSON.stringify(json), "utf-8")
        const exif = Buffer.concat([exifAttr, jsonBuff])
        exif.writeUIntLE(jsonBuff.length, 14, 4)
        await img.load(tmpFileIn)
        fs.unlinkSync(tmpFileIn)
        img.exif = exif
        await img.save(tmpFileOut)
        return tmpFileOut
    }
}

async function writeExif (media, metadata) {
    let wMedia = /webp/.test(media.mimetype) ? media.data : /image/.test(media.mimetype) ? await imageToWebp(media.data) : /video/.test(media.mimetype) ? await videoToWebp(media.data) : ""
    const tmpFileIn = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    const tmpFileOut = path.join(tmpdir(), `${Crypto.randomBytes(6).readUIntLE(0, 6).toString(36)}.webp`)
    fs.writeFileSync(tmpFileIn, wMedia)

    if (metadata.packname || metadata.author) {
        const img = new webp.Image()
        const json = { "sticker-pack-id": `https://github.com/DikaArdnt/Hisoka-Morou`, "sticker-pack-name": metadata.packname, "sticker-pack-publisher": metadata.author, "emojis": metadata.categories ? metadata.categories : [""] }
        const exifAttr = Buffer.from([0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, 0x41, 0x57, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00])
        const jsonBuff = Buffer.from(JSON.stringify(json), "utf-8")
        const exif = Buffer.concat([exifAttr, jsonBuff])
        exif.writeUIntLE(jsonBuff.length, 14, 4)
        await img.load(tmpFileIn)
        fs.unlinkSync(tmpFileIn)
        img.exif = exif
        await img.save(tmpFileOut)
        return tmpFileOut
    }
}

async function exifAvatar(buffer, packname, author, categories = [''], extra = {}) {
  const { default: { Image }} = await import('node-webpmux')
	const img = new Image()
	const json = { 'sticker-pack-id': 'parel-kntll', 'sticker-pack-name': packname, 'sticker-pack-publisher': author, 'emojis': categories, 'is-avatar-sticker': 1, ...extra }
	let exifAttr = Buffer.from([0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, 0x41, 0x57, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00])
	let jsonBuffer = Buffer.from(JSON.stringify(json), 'utf8')
	let exif = Buffer.concat([exifAttr, jsonBuffer])
	exif.writeUIntLE(jsonBuffer.length, 14, 4)
	await img.load(buffer)
	 img.exif = exif
	return await img.save(null)
}
async function addExif(webpSticker, packname, author, categories = [''], extra = {}) {
  const img = new webp.Image();
  const stickerPackId = Crypto.randomBytes(32).toString('hex');
  const json = { 'sticker-pack-id': stickerPackId, 'sticker-pack-name': packname, 'sticker-pack-publisher': author, 'emojis': categories, ...extra };
  let exifAttr = Buffer.from([0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, 0x41, 0x57, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00]);
  let jsonBuffer = Buffer.from(JSON.stringify(json), 'utf8');
  let exif = Buffer.concat([exifAttr, jsonBuffer]);
  exif.writeUIntLE(jsonBuffer.length, 14, 4);
  await img.load(webpSticker)
  img.exif = exif
  return await img.save(null)
}


module.exports = { imageToWebp, videoToWebp, writeExifImg, writeExifVid, writeExif, exifAvatar, addExif }